Home / 558,492.77-770,723.40-303,845.78

Finding the Fourth Proportional to 558,492.77, 770,723.40 and 303,845.78

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Solution

The fourth proportional to 558,492.77, 770,723.40 and 303,845.78 is: 419,309.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,492.77 : 770,723.40 = 303,845.78 : x
  2. Step 2: Convert to fraction form
    558,492.77/770,723.40 = 303,845.78/x
  3. Step 3: Cross multiply
    558,492.77x = 770,723.40 × 303,845.78
  4. Step 4: Simplify right side
    558,492.77x = 234,181,055,703.48
  5. Step 5: Solve for x
    x = 234,181,055,703.48/558,492.77
  6. Step 6: Final answer
    x = 419,309.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.